Thread-guide arrangement for cotton knitting machines for the knitting of stockings with two heel parts



April 22 1924. 1,491,478

- C. HILSCHER THREAD GUIDE ARRANGEMENT FOR COTTON KNITTING MACHINES FOR THE KNITTING OF STOCKINGS WITH TWO HEEL. PARTS 2 Sheets-Sheet 1 Filed Aug. 26 19 21 1,491,478 C. HILSCHER 0R COTTON KNITTING MACHINES FOR was April 22 1924.

THREAD GUIDE ARRANGEMENT F KNITTING OF STOC..INGS WITH TWO HEEL PARTS 2 Sheets-Sheet 2 Filed Aug. 26. 1921 Patented Apr. 22,

UNITED STATES.

PATENT I OFFICE;

CURT HILSCHER, OF CHEMNI'IZ, GERMANY.

THREAD-GUIDE ARRANGEMENT ron oo'r'ron KNITTING MACHINES FoRf'rHE 2 KNITTING or s'rooxmes WITH TWO HEEL PARTS.

Application filed August 26, 1921. Serial'No. 495,809. 1

T 0 all whom it may concewt."

' Be it known that I, CUR'r'HILsoHEn, a citizen of the German Republic, residing at Cheinnitz, Germany, have invented certain new and useful Improvements in Thread- Gui'de Arrangements for Cotton Knitting Machines for the Knitting of Stockings with Two Heel Parts (for which an application for patent has been filed in Germany on the 13th October, 1920), of which 'the following is a specification.

This invention relates to a device which, used in connection with Cotton knitting machines for the production of stockings with two heel parts, is designed to adjust automatically and to put in operation the-thread guide required for the heel parts before the knitting of these heel parts is begun and, when the heel parts are finished, to stop these thread guides and to release the roll of fabric in order to cause the automatic de tachinent of the heel parts. The handwork which has been necessary up to the present and the stopping of the machine necessitated by this handwork are thus suppressed, wherefrom results an increase of efficiency of the machine.

The arrangement which has been made to solve this problem consists essentially in bringing the drive for the thread guide (the so-called brake) which is known by itself and which is controlled by a counting device, intothe reach of a stop during an odd course, whereby this drive is properly adjusted upon the well known brake rod, auxiliary stops being further provided which are controlled also by the counting device and which determine the stroke of the thread guides in accordance with the said counting device.

In order to interrupt the displacement of the thread guides and of the taking up of the fabric when the heel parts have been finished a catch and at the same time a lockingdevice are operated by one of the auxiliary? stops, the catch serving to lock the rails of the thread guides and the locking device serving to release the roll of fabric from the action of the tension weight.

In order that the invention may be clearly understood, I shall proceed to describe the same with reference to the form of construction shown by way of example on the accompanying drawings, wherein Fig. 1 is a side elevation.

Figs. 2 and 3 are respectively a front view (width of the leg of the stocking, Fig. 3)

, and a'plan view of the thread guidingdevice;

Fig. 3 is a continuation of the side-end of Fig.3. I

Figs. 4 to 7 aredetail views. Fig. 8 illustrates the device for the taching. 3

The construction of the device will,be' best explained by a description of the operation of the same which is as followsz- Vhen the main-thread guide II fixed upon the rail 2 (Figs. 1 and 3) has workedithelegs L of the stockings up to the beginning of the heel parts F andiF, its course havingbeen the length V (Fig. 3), this course mu st be altered so that it is only equal to the. length F of the right hand side heel pa-rt.'- -,At fthe same time a second thread guide I mounted upon rail 1 must be operated so "that its course corresponds with the length F of the second heel part. In order toensure the operation of the thread guides I andII socalled odd row is worked in the wellknown manner with the aid of a counting device.- During the working of the odd row a lever 3 (Fig. 1), which'up to this moment hasz-been at rest, isreleased through the intermediary of the counting device so that this lever actuates iii-consequence of the action of a pull by means of a connecting rod 4 a leversy s tem 5, 6, 7 so that the brake rod 8 is slightly turned and the catch 9 for the thread "guide (brake) which is adjustably mounted-upon said rod Sis turned so that its dog 10 swings towards the thread guide rail 1. The dog 1O adopts thus the positionshown on 4 in dotted lines, coming thus in reaclr i'of a fixed abutment 11 (Figs. 2 and 3) locks the brake 9 so that itsrod 8 is to; to shift. for a distance m, the brake 9 altering thus its position'upon said rod 8. Alever 12 1) which-is controlled also froiiithe counting device, is now operated by iStIlCl counting device so that it adjusts, through the intermediary'of the connecting 13 the angle lever lat'fand pawl 15, a disk shhjped abutment 16 withabutinent pins 17,18,19 in such'a manner, that the pin '17is "brought over the rail 2 of the main thread fguid-e II (Figs. 1 and 5). The displacementj 'of the thread guide raill 2 is thus limited, in the left hand side direction, through the angle piece 20 of said rail coming in contact with the abutment pin 17, so that the course of the thread guide 11 is no longer equal to IV right hand but only equal toWiwhich is slightly longer thanthe fwidth F of the heel, whereby the formation of proper border loops at the inner edge of the heel part F is ensured when the first row of heel loops is-being knitted; When the knitting of the heel part F continuesthe course of the thread'guide II is only W as the abutment disk 16 is revolved again so that its pin 18,c omes into reach of the thread guide rail'2 (Figs. 3 and 6) determining thus the limit .:of movement of saidlra-il; i

In orderto throw in gear the thread guide,

rail 1 with the, thread, guide I an arm 21 Whose, screw bolt22 has served as abutment for the carriage 9 (Figs. 1 and 3) is raised so that the dog 10 comes in engagement with the; fork 23 fixed upon the rail 1 and can thus draw along this rail. A lever 24' de signed for the automatic adjustment of this arm 21 .is controlledalso from the counting device, its movement being tra-nsferred to arm 21 by meansntof levers 25, 26 and 27.

The adjustments described have been made during the working of the. odd row from right to left. Ifnow the loops of the first row of heel loops are sunk from left to. right both thread guides I and II run only so far; as is necessary for the requiredsvidtli of the heel parts, the well known set on frame 28. (Figs 2 and 3) which is loosely mounted upon the thread guide raill dropping at the same time in consequence of the displacement of the said rail 1 to the right, and adjusting itself so that. its stop screw limits the course of the thread guide at the left hand edge of the heel .part.F.- During the knitting ofthis rowthe abutment disk 16 is revolved again so that it getsfrom the position Fig. 6 to the position Fig. 7, its pin19 serving now to stop, the,,movemen t of .thethread guide at the inner edge of the heel part F. The

said heel partsi are completed .withlthe adjustments described.

)Vhemafter the heel part is finished, the detachment of the same from the knitting needles has to be effected, the abutn'ient disk 16 is revolved again whenthe last row of heel loops is beingknit sothat a segment 30 fixed upon said disk(Fig; 8,) adopts such a position that the nose of a lever 31 which restsupon this segment drops into a notch of said segment so thatan arm32 pivotally fixed ,upon; the pivot pin. of saidlever 31 drops down upon the thread guide rails and locksthe same so that they. cannot be moved I when 'the nex t row of loops is being sunk, wheretrom results the detachment of the heel parts as the thread is not conducted to the needles. In order toneutralize the action of the well known tension Weight upon the roll of fabric, the lever 31 operates at the same time a lever 33 so that its locking pawl 3 1 engages with a. ratchet. wheel 35 ofthe bobbin 37, which is thus prevented from being revolved" by the tension weight 38.

I claim 1. Thread guide arrangement for Cotton knitting. machines for the knitting of stockings with two heel parts, comprising in com bination with the main thread guide for the production of one of the heel parts and its. rail, with means for operating said;

thread guide rail and said mechanisms adapted to be controlled by a counting device, a second thread guide rail with a thread guide for the production of the second heel part, an abutment disk adapted to be controlled from said counting devicefor automatically ad usting and operatlng said main thread guide railand an arm pivotally,

fixed upon the axle of said abutment disk and adapted to be controlled from the said counting device for automatically adjusting and operating the said second thread guide rai i 2. Thread guide arrangement for Cotton knitting machines for the knitting of stockings with two heel parts, comprising in combination with the main thread guide forthe production of one of the heel parts and its rail, with means for operating, said thread guide rall and Said. mechanisms,

adapted to be controlled by a counting de vice, a second thread guide rail with a thread guide for the production ofthe second heel part, an abutment disk adapted to be vcontrolled from. said counting device for automatically adjusting andoperating said main thread guide rail, an arm pivotally fixed upon the axle of said abutment diskand controlledqfrom the. said countingdevice; for automatically adjusting and oper- In testlmony, that I claim the foregoing too 

